Sub-network route optimization over a shared access transport fa

Details Sub-network route optimization over a shared access transport fa Sub-network route optimization over a shared access transport fa

1998-10-15

1999-08-24

Nguyen, Chau

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

370400, 370254, H04L 1256

Patent

active

059433175

ABSTRACT:
Multiple virtual routing networks having the same identifier are defined on a shared access transport facility network. Virtual connections are defined from some or all of the network nodes to at least one of the virtual routing networks. A virtual connection contains a medium address for the node to which it is connected. When a route is calculated between a source node and a destination node, the identical identifier representing different virtual routing networks may appear in the calculated route. If it does, all portions of the route after the first occurrence up to and including the last occurrence of the identifier in the calculated route is deleted to achieve the optimal route. A destination node address is obtained from storage that is associated with the virtual connection to the destination node and information can then be directly routed to the destination node address via the calculated route in an efficient manner.

REFERENCES:
patent: 4987536 (1988-05-01), Humblet
patent: 5455865 (1993-12-01), Perlman
patent: 5596719 (1995-08-01), Ramakrishnan et al.
patent: 5699347 (1996-07-01), Callon
patent: 5793765 (1998-08-01), Boer et al.

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